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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Nd3+:YAG microspheres powders prepared by spray pyrolysis: Synthesis, characterization and random laser application

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Autor(es):
Pugina, Roberta Silva [1] ; Hilario, Eloisa Garibalde [1] ; da Rocha, Euzane Gomes [1] ; da Silva-Neto, Manoel L. [2] ; Das, Avishek [3] ; Caiut, Jose Mauricio Almeida [1] ; Gomes, Anderson S. L. [3]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Quim, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Fed Pernambuco, Grad Program Mat Sci, BR-50670901 Recife, PE - Brazil
[3] Univ Fed Pernambuco, Dept Fis, Ave Prof Moraes Rego 1235, 50670901 Recife, PE - Canada
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Materials Chemistry and Physics; v. 269, SEP 1 2021.
Citações Web of Science: 2
Resumo

Nd3+:YAG crystals have been used to develop photonic devices since the 1960s. Its unique properties, which stem from the combination of the YAG structure with lanthanide ions, have made it the most widely employed material in commercial solid-state lasers. This work reports the synthesis of dense Nd3+:YAG particles prepared by spray pyrolysis. During the synthesis, no clusters emerged, and the particles did not coalesce even after thermal treatment at 1100 degrees C. All characterization confirmed that the YAG phase was obtained as a spherical micro- and sub-micrometric material. In addition, the photoluminescence spectra showed the expected spectroscopic profile of Nd3+ replacing Y3+ at the dodecahedral sites. The presence of high Nd3+ concentration was exploited as a simultaneous gain and scatter medium for random laser application. The spray pyrolysis methodology described could be easily scaled up for a pilot setup or industrial production. Further applications as sensors or superluminescent sources can be envisaged. (AU)

Processo FAPESP: 16/11670-5 - NANOMATERIAIS e SISTEMAS LUMINESCENTES BASEADOS EM ÍONS TERRAS RARAS
Beneficiário:José Maurício Almeida Caiut
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 19/18828-1 - Materiais nano e/ou submicroparticulados à base de íons lantanídeos com potencial aplicação em fotônica
Beneficiário:José Maurício Almeida Caiut
Linha de fomento: Auxílio à Pesquisa - Regular